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Internal Medicine

Katherine A. Kotcherian, MD

Works at hospitals in Evanston, IL · Arlington Heights, IL · Winfield, IL … · Illinois

Summary

Dr. Katherine A. Kotcherian, MD is an internal medicine doctor at 1051 W Rand Rd, Arlington Heights, IL 60004. Phone: (847) 618-0535. Accepts Medicare assignment. In 2024, Katherine A. Kotcherian had 569 Original Medicare patients and 2,146 services. NPI 1740215177. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Katherine A. Kotcherian, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Katherine A. Kotcherian accept Medicare assignment?
Yes. Medicare's clinician data says Katherine A. Kotcherian accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Katherine A. Kotcherian see?
In 2024, CMS data shows 569 Original Medicare patients and 2,146 services for Katherine A. Kotcherian. This counts Original Medicare only and measures volume, not quality.
What is Katherine A. Kotcherian's NPI number?
1740215177. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Katherine A. Kotcherian, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients569
Services billed to Medicare2,146
Different services or procedures39
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)494 services
  2. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)458 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)315 services
  4. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)239 services
  5. Administration of influenza virus vaccine (G0008)92 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • High blood pressure63%
  • Arthritis46%
  • Osteoporosis26%
  • Ischemic heart disease22%
  • Anxiety21%

Hospitals where Katherine A. Kotcherian works

Medicare's Facility Affiliation Data lists Katherine A. Kotcherian at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Katherine A. Kotcherian is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists Katherine A. Kotcherian as a member of this group (CMS data updated October 2, 2026).

  • Endeavor Health Medical Group3,350 clinicians in the group

Specialties

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Arlington Heights

Clinicians with the same Medicare primary specialty in Arlington Heights, IL — not a recommendation.

All internal medicine doctors in Arlington Heights →

Other clinicians in Endeavor Health Medical Group

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolRush Medical College Of Rush University
Graduation year1997 (29 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1740215177
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians